HELP!! Losing Power

samb03

how much is your power loss. The dealer is going to tell you all is fine if it is just slightly less than when it was new. Not all cars are built the same, Nissans imparticular are bad about. After working in a dealer for a couple years, I drove alot of differnent cars. So comparing same make and model side-by-side there are differences. They had a self-learning ECU that also greatly affects it. The people that aggressively drove, not beat the crap out of it, their carhas were faster with worse gas miliage averages (even when driving with the cruise on down the highway). Those that babied and didn't hit high revs often had slower cars with better gas miliage. I don't know if things have changed but it stored in solid state memory that couldn't be erased by disconnecting the battery. It had to be done on the Consult (Nissan scan tool). If you drive a car 1 way for long enough it was eventual take that into account and modify the injector and timing settings. It isn't going to affect much by taking out and romping on it for 5 minutes once it is used to easy driving.

For example my friend who is still a Nissan tech had a Titan. He drove it pretty hard everywhere he went. It was faster than most but even driving down the highway at 70 for 100+ miles the most it ever got was 12.5 mpg. Another similar Titan I know gets 17. That is36% increase. If average 11 droving 60miles round trip to work with 6 stop signs total. Mostly highway.